针对GPS实时动态定位技术在铁路勘测中的应用，提出连续三角网重复设站测量既有线的方法。
A new surveying method with GPS RTK technique is proposed for the existing railway by overlapped stations in continuous triangle networks.
RTK定位技术是基于载波相位观测值的实时动态定位技术，它在地形测量中蕴含着巨大的潜力。
The RTK localization is a real-time and dynamic localization technology which is based on the observed value in carrier phase. It has the huge potential in the terrain survey.
分析了全球定位系统GPS的组成及功能，探讨了GPS实时差分动态定位技术及其误差来源。
This paper analyzes the components and features of GPS, discusses differential dynamic positioning technology with GPS in real time and its error sources.
利用CDMA无线数据传输技术传送gps差分数据可以扩大测区范围，实现高精度实时动态定位。
We can enlarge the range of mapping region by utilizing CDMA wireless data transmission in transporting GPS difference data, and realize high precision orientation of real time.
本文介绍了实时动态差分gpsRTK技术在杭州湾大桥桥位地形测绘中的实施与原则，并对GPS RTK定位结果进行了精度比较与分析。
This paper introduced the implement and principle of GPS RTK in the topographic mapping of HangZhou bay bridge location, compared and analyzed the precise of GPS RTK pointing result.
本文介绍了实时动态差分gpsRTK技术在杭州湾大桥桥位地形测绘中的实施与原则，并对GPS RTK定位结果进行了精度比较与分析。
This paper introduced the implement and principle of GPS RTK in the topographic mapping of HangZhou bay bridge location, compared and analyzed the precise of GPS RTK pointing result.
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